Facts
- Author
- Hooper, William George
- Language
- English
- Project Gutenberg No.
- 24667
- Released on Project Gutenberg
- February 22, 2008
- Bookshelves
- Science - Physics, Philosophy & Ethics
- Subjects
- Force and energy, Ether (Space), Gravitation, Matter
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)